Abstract:
:The evaluation of exposure to extremely low-frequency (ELF) magnetic fields using broadband measurement techniques gives satisfactory results when the field has essentially a single frequency. Nevertheless, magnetic fields are in most cases distorted by harmonic components. This work analyses the harmonic components of the ELF magnetic field in an outdoor urban context and compares the evaluation of the exposure based on broadband measurements with that based on spectral analysis. The multiple frequency rule of the International Commission on Non-ionizing Radiation Protection (ICNIRP) regulatory guidelines was applied. With the 1998 ICNIRP guideline, harmonics dominated the exposure with a 55% contribution. With the 2010 ICNIRP guideline, however, the primary frequency dominated the exposure with a 78% contribution. Values of the exposure based on spectral analysis were significantly higher than those based on broadband measurements. Hence, it is clearly necessary to determine the harmonic components of the ELF magnetic field to assess exposure in urban contexts.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Paniagua JM,Rufo M,Jiménez A,Pachón FT,Carrero Jdoi
10.1093/rpd/ncu175subject
Has Abstractpub_date
2015-02-01 00:00:00pages
173-80issue
2eissn
0144-8420issn
1742-3406pii
ncu175journal_volume
163pub_type
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